package org.nobody.mallb2c.mallproduct.service.impl;

import org.apache.commons.lang3.StringUtils;
import org.nobody.mallb2c.mallproduct.entity.AttrEntity;
import org.nobody.mallb2c.mallproduct.service.AttrService;
import org.nobody.mallb2c.mallproduct.vo.AttrGroupWithAttrsVo;
import org.nobody.mallb2c.mallproduct.vo.SkuItemVo;
import org.nobody.mallb2c.mallproduct.vo.SpuItemAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.nobody.common.utils.PageUtils;
import org.nobody.common.utils.Query;

import org.nobody.mallb2c.mallproduct.dao.AttrGroupDao;
import org.nobody.mallb2c.mallproduct.entity.AttrGroupEntity;
import org.nobody.mallb2c.mallproduct.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

  @Autowired
  AttrService attrService;

  @Override
  public PageUtils queryPage(Map<String, Object> params) {
    IPage<AttrGroupEntity> page = this.page(
      new Query<AttrGroupEntity>().getPage(params),
      new QueryWrapper<AttrGroupEntity>()
    );

    return new PageUtils(page);
  }

  @Override
  public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
    //select * from pms_attr_group where catelog_id=? and (attr_group_id = key or attr_group_name like %key%)
    String key = (String) params.get("key");

    QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
    if (!StringUtils.isEmpty(key)) {
      wrapper.and((obj) -> {
        obj.eq("attr_group_id", key).or().like("attr_group_name", key);
      });
    }

    if (catelogId == 0) { //没有选中分类时,前端会传0,此时应当查询所有
      IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);

      return new PageUtils(page);
    } else {

      IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper.eq("catelog_id", catelogId));

      return new PageUtils(page);
    }
  }

  /**
   * 根据分类id查出所有分组 以及这些组里面的属性
   * @param catelogId
   * @return
   */
  @Override
  public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
    //1、 查询分组信息
    List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
    //2、 查询所有属性
    List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
      AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
      BeanUtils.copyProperties(group,attrsVo);
      List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
      attrsVo.setAttrs(attrs);
      return attrsVo;
    }).collect(Collectors.toList());

    return collect;
  }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
      //查出当前spu对应的所有属性的分组信息 以及 当前分组下的所有属性对应的值
      List<SpuItemAttrGroupVo> vos = this.baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catalogId);
      return vos;
    }

}
